38 Prof. "Westwood's further descriptions of 



The following characters of Idarnes, as described by 

 Walker, seem sufficient to separate this insect generically 

 from the type of the genus, I. carme (for the former of 

 which I propose the name of Idarnella). The antennae 

 are clavate, 10-jointed, the 1st and 2nd joints long and 

 slender, the 3rd and following short and transverse ; the 

 prothorax elongate-conical ; the abdomen lanceolate, a 

 little longer than the thorax ; oviduct setose, much more 

 than twice the length of the body, tubiform, and like the 

 body in colour towards the base ; sheaths black, and 

 with the usual structure from thence to the tip, the tubi- 

 form part as long as the abdomen. Legs short, stout ; 

 coxae long ; fore femora incrassated, four posterior 

 femora slightly incrassated ; tibiae with two apical 

 spines.* 



Idarnes stabilis, Walker (op. cit., p. 62), also reared 

 from Ficus Indica by Sir W. Elliott, is described by 

 Walker as golden green, much like I. transiens in struc- 

 ture, with the sheaths of the oviduct black, thrice the 

 length of the body, with the usual structure, not tubi- 

 form towards the base. I presume from the latter 

 character that I. stabilis agrees with I. carme generically. 



Idarnes pteromaloides, Walker (op. cit., p. 63), also 

 infesting Ficus Indica and discovered by Sir W. Elliott, 

 is described as golden green, with 9-jointed ? subclavate 

 antennae, inserted near the mouth, with the club fusi- 

 form, longer than the two preceding joints together ; the 

 prothorax somewhat elongate ; the mesothorax rather 

 small, with the sutures of the parapsides indistinct ; the 

 abdomen convex, with four segments a little longer, 

 broader, and deeper than the thorax, terminating in a 

 lanceolate black tube, which is about one-sixth of the 

 whole length. Wings pellucid ; veins very pale yel- 

 lowish ; ulna much shorter than the humerus ; radius 

 shorter than the ulna, cubitus shorter than the radius, 

 descending abruptly to the disk ; stigma small. It has 

 not the long oviduct which distinguishes the other 

 species of the genus, which character alone, in my 

 opinion, sufficiently separates it generically from the 



* I. transiens, fcein. — "Lutescens, caput transversuni ; antennae 

 fuscse, 10-articulatse basi pallide flavse ; prothorax longi-conicus 

 petiolus brevissimus ; abdomen lanceolatum, tborace paullo longius ; 

 oviductus corpore phis duplo longior, basi tubiforrnis ; femora sub- 

 incrassata ; alas diaphanae venis pallide flavis." Long. corp. 1 lin, 



